How to download and setup KeyboardController
Open terminal and run command
                                            git clone https://github.com/tomaszpoliszuk/KeyboardController.git
                                        
                                        git clone is used to create a copy or clone of KeyboardController repositories.
                                        You pass git clone a repository URL. it supports a few different network protocols and corresponding URL formats.
Also you may download zip file with KeyboardController https://github.com/tomaszpoliszuk/KeyboardController/archive/master.zip
Or simply clone KeyboardController with SSH
                                            [email protected]:tomaszpoliszuk/KeyboardController.git                                    
                                    If you have some problems with KeyboardController
You may open issue on KeyboardController support forum (system) here: https://github.com/tomaszpoliszuk/KeyboardController/issuesSimilar to KeyboardController repositories
Here you may see KeyboardController alternatives and analogs
open-source-ios-apps IQKeyboardManager Karabiner-Elements readline-sync XHLaunchAd Bender EmojiIntelligence SBSAnimoji qui-radio-app STPopup STPopupPreview TSWeChat Dash-iOS ChatSecure-iOS CHIPageControl iphone-inline-video ioctocat OpenSSL-for-iPhone Sol mobile-web-favorites HiBeacons Device CodenameOne BlockParty PopcornTimeTV WSProgressHUD chat-sdk-ios LEEAlert app-framework AssistantKit